Sounds like the Surface Pro would be the best choice for you then if you're going to use Windows regardless.

Granted, we have the Lenovo Tablet 2 at work (Atom-based granted) and it sucks. Honestly, I find Windows 8 harder to use with touch than my keyboard and mouse at home. And the Lenovo has a digitizer too like the Surface, but it still sucks to use. Unless you strictly use the "apps", touch is just pointless.

That being said, depending on your usage, maybe something like the ASUS Taichi is a better choice. At least it has a proper keyboard/touchpad for daily computing purposes, along with converting into a tablet (kinda) when you want that.